Iodine observed in new particle formation events in the Arctic atmosphere during ACCACIA
Accurately accounting for new particle formation (NPF) is crucial to our ability to predict aerosol number concentrations in many environments and thus cloud properties, which is in turn vital in simulating radiative transfer and climate. Here we present an analysis of NPF events observed in the Gre...
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ftdoajarticles:oai:doaj.org/article:516a65afc0e1440ca207475be0a0b1f1 2023-05-15T14:52:33+02:00 Iodine observed in new particle formation events in the Arctic atmosphere during ACCACIA J. D. Allan P. I. Williams J. Najera J. D. Whitehead M. J. Flynn J. W. Taylor D. Liu E. Darbyshire L. J. Carpenter R. Chance S. J. Andrews S. C. Hackenberg G. McFiggans 2015-05-01T00:00:00Z https://doi.org/10.5194/acp-15-5599-2015 https://doaj.org/article/516a65afc0e1440ca207475be0a0b1f1 EN eng Copernicus Publications http://www.atmos-chem-phys.net/15/5599/2015/acp-15-5599-2015.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 1680-7316 1680-7324 doi:10.5194/acp-15-5599-2015 https://doaj.org/article/516a65afc0e1440ca207475be0a0b1f1 Atmospheric Chemistry and Physics, Vol 15, Iss 10, Pp 5599-5609 (2015) Physics QC1-999 Chemistry QD1-999 article 2015 ftdoajarticles https://doi.org/10.5194/acp-15-5599-2015 2022-12-31T10:42:25Z Accurately accounting for new particle formation (NPF) is crucial to our ability to predict aerosol number concentrations in many environments and thus cloud properties, which is in turn vital in simulating radiative transfer and climate. Here we present an analysis of NPF events observed in the Greenland Sea during the summertime as part of the Aerosol-Cloud Coupling And Climate Interactions in the Arctic (ACCACIA) project. While NPF events have been reported in the Arctic before, we were able, for the first time, to detect iodine in the growing particles using an Aerosol Mass Spectrometer (AMS) during a persistent event in the region of the coastal sea-ice near Greenland. Given the potency of iodine as a nucleation precursor, the results imply that iodine was responsible for the initial NPF, a phenomenon that has been reported at lower latitudes and associated with molecular iodine emissions from coastal macroalgae. The initial source of iodine in this instance is not clear, but it was associated with air originating approximately 1 day previously over melting coastal sea-ice. These results show that atmospheric models must consider iodine as a source of new particles in addition to established precursors such as sulfur compounds. Article in Journal/Newspaper Arctic Greenland Greenland Sea Sea ice Directory of Open Access Journals: DOAJ Articles Arctic Greenland Atmospheric Chemistry and Physics 15 10 5599 5609 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Physics QC1-999 Chemistry QD1-999 |
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Physics QC1-999 Chemistry QD1-999 J. D. Allan P. I. Williams J. Najera J. D. Whitehead M. J. Flynn J. W. Taylor D. Liu E. Darbyshire L. J. Carpenter R. Chance S. J. Andrews S. C. Hackenberg G. McFiggans Iodine observed in new particle formation events in the Arctic atmosphere during ACCACIA |
topic_facet |
Physics QC1-999 Chemistry QD1-999 |
description |
Accurately accounting for new particle formation (NPF) is crucial to our ability to predict aerosol number concentrations in many environments and thus cloud properties, which is in turn vital in simulating radiative transfer and climate. Here we present an analysis of NPF events observed in the Greenland Sea during the summertime as part of the Aerosol-Cloud Coupling And Climate Interactions in the Arctic (ACCACIA) project. While NPF events have been reported in the Arctic before, we were able, for the first time, to detect iodine in the growing particles using an Aerosol Mass Spectrometer (AMS) during a persistent event in the region of the coastal sea-ice near Greenland. Given the potency of iodine as a nucleation precursor, the results imply that iodine was responsible for the initial NPF, a phenomenon that has been reported at lower latitudes and associated with molecular iodine emissions from coastal macroalgae. The initial source of iodine in this instance is not clear, but it was associated with air originating approximately 1 day previously over melting coastal sea-ice. These results show that atmospheric models must consider iodine as a source of new particles in addition to established precursors such as sulfur compounds. |
format |
Article in Journal/Newspaper |
author |
J. D. Allan P. I. Williams J. Najera J. D. Whitehead M. J. Flynn J. W. Taylor D. Liu E. Darbyshire L. J. Carpenter R. Chance S. J. Andrews S. C. Hackenberg G. McFiggans |
author_facet |
J. D. Allan P. I. Williams J. Najera J. D. Whitehead M. J. Flynn J. W. Taylor D. Liu E. Darbyshire L. J. Carpenter R. Chance S. J. Andrews S. C. Hackenberg G. McFiggans |
author_sort |
J. D. Allan |
title |
Iodine observed in new particle formation events in the Arctic atmosphere during ACCACIA |
title_short |
Iodine observed in new particle formation events in the Arctic atmosphere during ACCACIA |
title_full |
Iodine observed in new particle formation events in the Arctic atmosphere during ACCACIA |
title_fullStr |
Iodine observed in new particle formation events in the Arctic atmosphere during ACCACIA |
title_full_unstemmed |
Iodine observed in new particle formation events in the Arctic atmosphere during ACCACIA |
title_sort |
iodine observed in new particle formation events in the arctic atmosphere during accacia |
publisher |
Copernicus Publications |
publishDate |
2015 |
url |
https://doi.org/10.5194/acp-15-5599-2015 https://doaj.org/article/516a65afc0e1440ca207475be0a0b1f1 |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Greenland Greenland Sea Sea ice |
genre_facet |
Arctic Greenland Greenland Sea Sea ice |
op_source |
Atmospheric Chemistry and Physics, Vol 15, Iss 10, Pp 5599-5609 (2015) |
op_relation |
http://www.atmos-chem-phys.net/15/5599/2015/acp-15-5599-2015.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 1680-7316 1680-7324 doi:10.5194/acp-15-5599-2015 https://doaj.org/article/516a65afc0e1440ca207475be0a0b1f1 |
op_doi |
https://doi.org/10.5194/acp-15-5599-2015 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
15 |
container_issue |
10 |
container_start_page |
5599 |
op_container_end_page |
5609 |
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1766323780555112448 |